乳腺浸润性导管癌的MRI诊断

目的：探讨乳腺浸润性导管癌的MRI诊断价值。方法：对60例经手术病理证实的乳腺浸润性导管癌患者行MRI平扫及动态增强检查，从病灶形态学及时间-信号曲线、早期强化率等方面进行诊断。结果：60例浸润性导管癌中，12例T1WI等信号，48例低信号；15例T2WI等信号，45例高信号；57例病灶内部信号不均匀。增强扫描30例呈边缘环状强化，15例呈分支状强化，9例呈均匀强化，6例轻度强化。时间-信号强度曲线：Ⅰ型6例，Ⅱ型33例，Ⅲ型21例。54例早期增强率〉80％，6例〈80％但〉60％。结论：依据MR形态学特征、时间-信号强度曲线和早期增强率可以对乳腺浸润性导管癌作出准确的诊断。

MRI Diagnosis of Infiltrating Ductal Carcinoma of Mammary Gland

Objective:To study the value of MRI in the diagnosis of infiltrating ductal carcinoma of mammary gland.Methods:Plain and enhanced MRI were performed in 60 patients with surgery and histopathology proved infiltrating ductal carcinoma of breast,the morphology,time-signal intensity curve and the rate of early enhancement were analyzed.Results:Of the 60 cases,12 cases showed iso-intensity and 48 cases showed hypo-intensity on T1WI;15 cases showed iso-intensity and 45 cases showed hyper-intensity on T2WI.Heterog...